Black, tarry stools are NOT normal. They could be a sign of Melena upper gastrointestinal bleeding that requires urgent medical attention. Learn the difference between Melena vs Hematochezia, common Hematochezia vs melena: Comparing symptoms, causes, and treatment Know Your Stool Physiology Video USMLE Step 1 Understanding Melena: Common Causes and Symptoms Fortis Healthcare
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melenic vs melanotic stool What Causes Black or Tarry Stool?